<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script type="text/javascript" src="Demo05.js"></script>
<title>操作CSS样式</title>
</head>

<body onload="ready()">
验证码：<span id="span"></span><input type="text" id="check"  onchange="checkCode()"/><input type="button" onclick="createCode()" value="刷新验证码" />
</body>
</html>
